Assessment of Nutritional Status of Guava Seedlings using Preliminary DRIS Norms and Sufficiency Ranges
dc.contributor.author | Souza, H. A. | |
dc.contributor.author | Rozane, D. E. [UNESP] | |
dc.contributor.author | Amorim, D. A. | |
dc.contributor.author | Dias, M. J. T. [UNESP] | |
dc.contributor.author | Modesto, V. C. [UNESP] | |
dc.contributor.author | Natale, W. [UNESP] | |
dc.contributor.institution | Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Agr Res Co Minas Gerais | |
dc.date.accessioned | 2018-11-26T16:16:38Z | |
dc.date.available | 2018-11-26T16:16:38Z | |
dc.date.issued | 2015-08-24 | |
dc.description.abstract | The objective of this work was to propose preliminary Diagnosis and Recommendation Integrated System (DRIS) norms and derive critical levels and nutrient sufficiency ranges in the leaves of guava plants in commercial nursery conditions. Sixty-eight leaf samples were evaluated from fertilization trials with seedlings. In the low-yield subpopulation (84% of the population), the limiting nutrients by deficiency in descending order were nitrogen (N)> copper (Cu)>phosphorus (P) = potassium (K)> manganese (Mn)> iron (Fe) = zinc (Zn)> sulfur (S)> boron (B) = magnesium (Mg)> calcium (Ca), and the limiting ones by excess in descending order were B > Ca > Fe > Mn > S > Mg > Cu > P > Zn > N = K. The ranges of the appropriate DRIS indices were 24 to 28, 2.4 to 3.1, 21 to 29, 6 to 8, 1.9 to 2.9 and 1.9 to 2.3 (g kg(-1)) for the macronutrients N, P, K, Ca, Mg and S, respectively, and 35 to 48, 4 to 15, 68 to 93, 31 to 60 and 180 to 245 (mg kg(-1)) for the micronutrients B, Cu, Fe, Mn and Zn, respectively. The dry matter production of guava seedlings was associated with the nutritional status. | en |
dc.description.affiliation | Brazilian Agr Res Corp CNPC, BR-62010970 Sobral, Brazil | |
dc.description.affiliation | State Univ Sao Paulo, Registro, Brazil | |
dc.description.affiliation | Agr Res Co Minas Gerais, Uberaba, Brazil | |
dc.description.affiliation | State Univ Sao Paulo, Jaboticabal, Brazil | |
dc.description.affiliationUnesp | State Univ Sao Paulo, Registro, Brazil | |
dc.description.affiliationUnesp | State Univ Sao Paulo, Jaboticabal, Brazil | |
dc.format.extent | 1611-1618 | |
dc.identifier | http://dx.doi.org/10.1080/01904167.2015.1017050 | |
dc.identifier.citation | Journal Of Plant Nutrition. Philadelphia: Taylor & Francis Inc, v. 38, n. 10, p. 1611-1618, 2015. | |
dc.identifier.doi | 10.1080/01904167.2015.1017050 | |
dc.identifier.file | WOS000360518800003.pdf | |
dc.identifier.issn | 0190-4167 | |
dc.identifier.uri | http://hdl.handle.net/11449/160767 | |
dc.identifier.wos | WOS:000360518800003 | |
dc.language.iso | eng | |
dc.publisher | Taylor & Francis Inc | |
dc.relation.ispartof | Journal Of Plant Nutrition | |
dc.relation.ispartofsjr | 0,332 | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Psidium guajava | |
dc.subject | leaf analysis | |
dc.subject | nursery | |
dc.title | Assessment of Nutritional Status of Guava Seedlings using Preliminary DRIS Norms and Sufficiency Ranges | en |
dc.type | Artigo | |
dcterms.license | http://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp | |
dcterms.rightsHolder | Taylor & Francis Inc | |
unesp.department | Engenharia Agronômica - FCAVR | pt |
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